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- Basic knowledge of Android architecture Chinese WORD version
- This document mainly talks about the basic knowledge of Android architecture; Android relies on Linux kernel 2.6 to provide core services, such as process management, network protocol stack, and hardware drivers. Here, the Linux kernel serves as an abstraction layer between the hardware layer and the system software stack layer. This operating system is not GNU/Linux-like because its system libraries, system initialization, and programming interfaces are different from standard Linux systems. Android contains some C/C++ libraries, media libraries, database engine libraries, etc. These libraries can be used by Android
- 2024-02-29 0 519
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- Detailed guide to creating and using databases in Android Chinese WORD version
- Every application uses data, and Android applications are no exception. Android uses an open source, operating system-independent SQL database--SQLite. This article introduces how to create and operate a SQLite database for your Android application. Database supports the lifeline of every application no matter how big or small. Unless your application only handles simple data, then you need a database system to store your structured data. Android uses SQLite database, which is an open source and supports multiple operating systems. SQ
- 2024-02-28 0 504
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- Databases for Android data access Chinese WORD version
- This document mainly talks about Databases for Android data access; databases can be operated on the Android platform, which is one of the surprises when you first come into contact with Android. On the Android platform, a SQLite database is bound. This database system is also very unique. Its largest application scenario is embedded systems. I hope this document will help friends in need; interested friends can come and take a look.
- 2024-02-29 0 542
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- Spark Streaming Programming Guide Chinese WORD version
- Spark Streaming is the core API of Spark, which supports high throughput and fault-tolerant real-time streaming data processing. It can accept data sources from Kafka, Flume, Twitter, ZeroMQ and TCP Socket, use simple API functions such as map, reduce, join, window and other operations, and can also directly use built-in machine learning algorithms and graph algorithm packages to process data . Interested friends can come and take a look
- 2024-02-27 0 908
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- Shell scripting basics Chinese WORD version
- Shell itself is a program written in C language, which is a bridge for users to use Linux. Shell is both a command language and a programming language. As a command language, it interactively interprets and executes commands entered by the user; as a programming language, it defines various variables and parameters, and provides many control structures found only in high-level languages, including loops and branches. Although it is not part of the Linux system core, it calls most of the functions of the system core to execute programs, create files, and coordinate the running of various programs in a parallel manner. Therefore, for
- 2024-02-03 6 2665
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- Android embedded SQLite database Chinese WORD version
- This document mainly talks about the Android embedded SQLite database; a relational database SQLite is embedded in the Android platform. Unlike other databases, SQLite does not distinguish types when storing data; interested friends can come and take a look.
- 2024-02-28 0 1061
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- Quickly get started with Android database operations Chinese WORD version
- Android uses the relational database SQLite3, which is a lightweight embedded database that supports SQL and is widely used in embedded operating systems. WM also uses SQLite3; more details about the principles and principles are in this article I won’t mention it, but if you want to quickly learn to operate SQLite3, then this is the article you are looking for! Interested friends can come and take a look
- 2024-02-28 0 909
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- Basic knowledge of PLC programming Chinese doc version
- Programmable controller, called Programmable Controller in English, or PC for short. However, because PC is easily confused with Personal Computer (Personal Computer), people are still accustomed to using PLC as the abbreviation of programmable controller. It is an electronic system device with a microprocessor as the core for digital operation. It is specially designed for industrial field applications. It uses programmable memory to store and execute logical operations, sequence control, timing/ Operation instructions such as counting and arithmetic operations, and through digital or analog input
- 2024-02-29 0 958
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- Android cooperates with WebService to access remote database Chinese WORD version
- Use HttpClient to request data from the server-side action. Of course, calling server-side methods to obtain data is not the only one. WebService can also provide us with the required data, so what is webService? , it is a remote calling standard based on the SAOP protocol. Different operating system platforms, different languages, and different technologies can be integrated through webservice. To realize Android and server-side data interaction, we need some libraries in the PC machine Java client, such as XFire, A
- 2024-02-26 0 903
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- Usage examples of Android database SQLite Chinese WORD version
- Android provides three data storage methods, the first is file storage; the second is SharedPreferences storage; and the third is database SQLiteDatabase storage. I don’t need to say more about file storage, but SharedPreferences can access simple data (int, double, float.etc). It is often used for data caching because it is simple to read and store. For details, please refer to this series. Advanced Tutorial for Android Experts (7) - Android Medium
- 2024-02-29 0 930
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- SQLite syntax and Android database operations Chinese WORD version
- This document mainly talks about SQLite syntax and Android database operations; Android's SQLiteDatabase does not originally depend on Android, but exists independently as an individual, with its own unique system and language, and this is SQL syntax . SQLite is a lightweight database with few functions for large databases, so you only need to learn some common SQL syntax to easily master it, and these SQL syntaxes are basically unchanged for other databases. needed
- 2024-02-27 0 563
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- Android development skills collection tutorial pdf version
- Android development skills collection pdf version, including: ANDROID common class library description, ANDROID file system and application architecture, ANDROID application structure, ANDROID UI LAYOUT (layout), ANDROID UI controls, ANDROID UI beautification, ANDROID UI animation, asynchronous calls , data storage and reading, etc.
- 2024-02-26 0 851
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- Three-dimensional display of images based on hybrid programming of VC and Matlab WORD version
- This document mainly describes the three-dimensional display of images based on hybrid programming of VC and Matlab; introduces the general implementation method of hybrid programming of VC++ and Matlab, and realizes the three-dimensional effect display of two-dimensional images. MATLAB is not only an intuitive and efficient computer language, but also a scientific computing platform. It provides core mathematical and advanced graphics tools for data analysis and data visualization, algorithm and application development. I hope this document will help friends in need; interested friends can come and take a look.
- 2024-01-18 3 2252
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- ARM compiler Chinese WORD version
- This document mainly talks about the ARM compiler; the development tools of ARM application software include compilation software, assembly software, link software, debugging software, embedded real-time operating system, function library, evaluation board, and JTAG emulator according to different functions. , online emulator, etc.; I hope this document will help friends in need; interested friends can come and take a look.
- 2024-02-26 0 1167
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- fortran language grammar WORD version
- This document mainly talks about the syntax of the fortran language; FORTRAN is the earliest high-level programming language in the world and the most commonly used programming language in the engineering community. It is used in scientific computing (such as aerospace, geological exploration, weather forecasting, construction engineering and other fields ) plays an extremely important role. After more than 40 years of development, with the updates of multiple versions of the FORTRAN language and the emergence of corresponding development systems, its functions have been continuously improved. The latest version of the development system has almost all the features of VC and VB, such as graphical interface programming, databases, etc. I hope this document will help friends in need
- 2024-02-03 0 1239
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- Subversion Installation and Instructions Document WORD Version
- This document mainly describes the installation and use instructions for Subversion; Subversion is a free/open source version control system that is gradually replacing CVS. Subversion's repository can be accessed through the network, allowing users to operate on different computers. Subversion supports versioned directories, true version history, atomic commits, versioned dataless, an optional network layer, consistent data operations, efficient branch and tag operations, and modifiability. I hope this document will help those in need; those who are interested
- 2024-02-28 0 811
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- RMI remote method call word version
- Raza Microelectronics, Inc. (RMI) is a leader in innovative semiconductor solutions for information infrastructure. Its products are widely used to improve the evolving information infrastructure. In this evolution process, the connections between data centers and homes are gradually upgraded in terms of strength and speed; security and intelligence have become requirements for every network system environment; at the same time, edge networks are increasingly becoming bottlenecks, prompting the industry to need more Intelligent network access method with scalability and cost advantages. RMI designs and provides a variety of information infrastructure
- 2024-01-27 0 933
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- Quick Start with Python
- The Second Edition of the Quickly Learn Python Book is a concise and clear introduction to python3, targeting programmers who are new to learning python. This updated version includes all the changes in Python 3, that is, the feature changes of Python from earlier versions to the new version. The book starts with basic but useful procedures to teach readers about the core features of Python, including syntax, control flow and data structure. This book then uses large-scale applications including code management, object-oriented programming, web development, and converting older versions of Python programs to newer versions.
- 2024-01-26 0 1195
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- Easy language introductory tutorial CHM version
- The Easy Language introductory tutorial CHM introduces the basic data types, constant tables, operators, bit operation commands and Easy Language support libraries of the Easy Language system. Programs written in Easy Language need to load the Easy Language support library files when running. On the surface, the EXE program generated by non-independent compilation of Yi Language is small in size. But in fact, if you want to publish the software for use on other people's computers, non-independent compilation will face many problems. Therefore, in actual applications, all independent compilation should be done Compile.
- 2024-01-19 0 814
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- Delphi7 basic grammar tutorial Chinese WORD version
- Delphi is a Windows rapid application development tool (RAD Rapid Application Development) based on the client/server system launched by the American Borland Company. It is an object-oriented visual programming tool based on the visibility of Delphi and combined with the Object Pascal language. With programming skills, you can develop powerful Windows applications and database applications. Delphi is the first visual development environment, optimized source code compiler and
- 2024-01-18 1 1059